EP1792563A1 - Système d'analyse muni d'un élément d'affichage de type OLED - Google Patents

Système d'analyse muni d'un élément d'affichage de type OLED Download PDF

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Publication number
EP1792563A1
EP1792563A1 EP05026289A EP05026289A EP1792563A1 EP 1792563 A1 EP1792563 A1 EP 1792563A1 EP 05026289 A EP05026289 A EP 05026289A EP 05026289 A EP05026289 A EP 05026289A EP 1792563 A1 EP1792563 A1 EP 1792563A1
Authority
EP
European Patent Office
Prior art keywords
display
display element
medical system
portable medical
organic light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05026289A
Other languages
German (de)
English (en)
Inventor
Gunther Schmelzeisen-Redeker
Stefan Kalveram
Wilfried Schmid
Friedrich Ziegler
Wolfgang Heck
Andreas Menke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F Hoffmann La Roche AG
Roche Diagnostics GmbH
Original Assignee
F Hoffmann La Roche AG
Roche Diagnostics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by F Hoffmann La Roche AG, Roche Diagnostics GmbH filed Critical F Hoffmann La Roche AG
Priority to EP05026289A priority Critical patent/EP1792563A1/fr
Priority to EP06830295A priority patent/EP1954180B1/fr
Priority to AT06830295T priority patent/ATE447884T1/de
Priority to PCT/EP2006/069229 priority patent/WO2007063135A1/fr
Priority to CA002627677A priority patent/CA2627677A1/fr
Priority to CN200680044273.XA priority patent/CN101316548A/zh
Priority to DE502006005372T priority patent/DE502006005372D1/de
Priority to JP2008542777A priority patent/JP2009517153A/ja
Publication of EP1792563A1 publication Critical patent/EP1792563A1/fr
Priority to US12/129,050 priority patent/US8439834B2/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/48785—Electrical and electronic details of measuring devices for physical analysis of liquid biological material not specific to a particular test method, e.g. user interface or power supply
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0295—Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1486—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using enzyme electrodes, e.g. with immobilised oxidase
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light

Definitions

  • the invention relates to a portable medical system, which can be used in particular for analysis and / or medication purposes.
  • portable medical systems in the context of "homecare systems", z. B. in blood glucose monitoring or self-medication, for example by means of insulin pumps used.
  • the determination of blood glucose concentrations and a corresponding medication is an essential part of the daily routine for diabetics.
  • the blood glucose concentration must be determined quickly and easily several times a day (typically two to seven times) in order to be able to take appropriate medical measures if necessary.
  • medication is thereby carried out by means of automatic systems, in particular so-called insulin pumps.
  • a first measuring method is based, for example, on an electrochemical measuring method in which a blood sample is applied to an electrode coated with enzymes and mediators. Corresponding test strips for such electrochemical measurement methods are, for example, in US 5,286,362 described.
  • Other known measuring methods use optical measuring methods, which, for example, based on the fact that the substance to be detected can react with certain detection reagents, wherein a color change of the reaction mixture occurs.
  • Systems for detecting such color reactions and thus for detecting the corresponding analytes are for example CA 2,050,677 known.
  • diabetes due to the general age-related increase in diabetes, diabetes often occurs in older people. Especially in the elderly, however, is often the eyesight, especially under poor lighting conditions, age-related limited. In addition, eye damage is a common form of typical sequelae of diabetes mellitus. Therefore, diabetics in particular require easy-to-read display elements in the portable measuring devices used for self-checking. Similar problems also occur in other types of diseases in which portable devices are used in a homecare concept.
  • LCDs liquid crystal displays
  • segmented LCDs and matrix LCDs are used. Due to their low cost and easier control, predominantly segmented LCDs are used. Matrix LCDs are included in a few glucose meters, and these devices are often high quality devices with extensive data management capabilities.
  • liquid crystal displays have some disadvantages in terms of their readability.
  • liquid crystal displays are not self-luminous. Rather, the liquid crystal elements merely act as a "switch" for turning a local transparency on and off.
  • the displayed characters thus become visible by blocking or transmitting transmitted light at certain points of the display or in certain areas of the display.
  • the provision of the light must be by other means than the liquid crystal display itself. On the one hand, this can be done by reflecting ambient light on a reflective surface behind the liquid crystal display and transmitting it through the liquid crystal display. In this case, however, the readability of the liquid crystal display greatly depends on the illuminance of the ambient light. In dark or dimly lit environments, liquid crystal displays are difficult or impossible to read.
  • organic light-emitting diodes In addition to liquid crystal displays, a number of other display technologies are known. Thus, from other fields of technology, the technology of organic light-emitting diodes (OLEDs) is known, which is used in various technical modifications.
  • OLEDs organic light-emitting diodes
  • thin organic layers one or more organic layers having a total thickness typically between 50 and 300 nm
  • electrodes When an electric current is passed through the organic layers, similar to inorganic semiconductors, a recombination of "electrons” and “holes” (or their organic counterparts) takes place in the organic layers. In this recombination, photons are emitted. This effect is called organic electroluminescence.
  • organic light-emitting diodes are constructed as thin-film systems on a transparent substrate, for example a glass or plastic substrate.
  • a transparent electrode layer is used as the first electrode layer (for example anode layer), for example indium tin oxide.
  • a counter electrode usually cathode
  • a metal layer for example calcium or magnesium
  • Organic light emitting diodes are now used in various fields of technology. Examples include mobile phones, mixing consoles in the audio sector, displays for digital cameras, as well as MP3 players or multimedia players. There are also application examples in the field of medical technology. For example, describe WO 2004/048881 A2 and US 2003/0035109 A1 Systems in which organic light-emitting diodes are used as light sources.
  • WO 2004/048881 A2 discloses a measuring device for optically examining a diagnostic test element with a light source, a photodetector and a device for positioning the test element. The light source has one or more organic light-emitting diodes.
  • US 2003/0035109 A1 discloses a device for detecting organic molecules, in particular biomolecules or polymers, wherein for illumination purposes, inter alia, the use of an O-LED is proposed.
  • a problem of the use of OLED displays is often that the displays used have a relatively short life and prone to high susceptibility. This is in particular that the organic materials used degrade over time. Furthermore, the quality control is often difficult, and for example, the electrode materials used (for example, reactive metals such as calcium or magnesium) tend to oxidation effects. These effects cause the individual pixels, individual rows or columns, as well as partially whole displays suddenly or unexpectedly suddenly fail. However, such a failure is often associated with fatal consequences especially in medical devices, in particular medical devices which are used in the private sector for self-control and / or self-medication. Thus, it may be that in particular older patients do not perceive occurring errors or, even if the errors are perceived, do not respond properly to these errors.
  • the electrode materials used for example, reactive metals such as calcium or magnesium
  • segmented displays for example 7-segment displays
  • 7-segment displays have proved to be disadvantageous here, as a falsification of displayed values can easily occur due to unnoticed failure of individual segments.
  • a display "7” can easily become the display "1" if the uppermost horizontal segment fails.
  • Such a defect can bring disastrous consequences in displays in the medical field.
  • a portable medical system is proposed, which can be used in particular for analysis and / or medication purposes.
  • the term "portable” should be understood to mean that the medical system can be carried along by the patient as part of a "homecare system” in order, for example, to ensure basic medical care at home, at work or during leisure.
  • the portable medical system should be made small, for example, should have dimensions similar to the dimensions of a typical mobile phone and should preferably have only a low susceptibility to interference such as mechanical shock and / or moisture.
  • the invention is intended to relate to a medical system which has an analysis system for detecting at least one analyte in a sample.
  • Such systems may include, for example, the systems described above which are based on corresponding test strips and devices for evaluating such test strips. In particular, these may be devices for detecting blood glucose and / or cholesterol and / or coagulation. Other analytes may also be detectable, for example a lactate content.
  • the analysis system can employ at least one reagent which reacts with the analyte to be detected and thereby triggers an electrochemical change of the reaction mixture and / or a color reaction.
  • the medical system may alternatively or additionally also comprise a medication device, in particular a medication pump.
  • a medication device in particular a medication pump.
  • it may be an insulin pump for an independent medication with insulin, for example an insulin pump which emits a predetermined insulin dose at regular intervals or which adjusts a dosage amount corresponding to an input signal.
  • the portable medical system may also comprise another type of medical monitoring device. Such devices are known in the art in various configurations.
  • the portable medical system has at least one display element which comprises at least one organic light-emitting diode display.
  • This can be particularly advantageously a matrix display, for example an organic passive matrix display.
  • Matrix displays have, in contrast, for example, to segmented displays, the disadvantages described above not that failures are often difficult to see. In matrix displays, failures typically occur as (usually harmless) point defects or as easily recognizable line and / or column failures. The possibility of a wrong reading is thus further reduced.
  • At least one display element it is also possible to use further display elements using other technologies, for example liquid-crystal displays or inorganic light-emitting diode displays.
  • OLED techniques can be used for the organic light-emitting diode display.
  • OLEDs which are based on monomolecular organic substances and displays which comprise polymers.
  • Mixed technologies hybrid technologies
  • segment displays can be used, for example 7-segment displays, or simple symbol displays, for example displays with battery level displays or warning displays.
  • Active matrix-controlled displays are possible in principle, but in this case, the cost is increased (which, however, represents a portable disadvantage, especially in high-quality equipment).
  • organic light emitting diode displays are manifold. In particular, significantly higher contrasts can be achieved, whereby the readability is significantly improved even with small font sizes.
  • organic light-emitting diode displays are self-luminous display elements which are very easy to read even in the dark or in low light conditions. Backlighting can be dispensed with, which significantly reduces energy consumption over conventional liquid crystal displays. This results in significantly longer battery life, which is particularly advantageous in glucose meters with motors and other "energy guzzlers".
  • the reading angle covers a range of almost 180 ° (that is, from almost -90 ° to nearly + 90 °).
  • this represents a considerable advantage.
  • organic light-emitting diode displays are inexpensive to produce, so that even low-cost devices can be equipped with this technology.
  • a further advantage is that organic light-emitting diode displays can be used considerably more flexibly than conventional LCDs, in particular in comparison with passive matrix LCDs.
  • the organic light-emitting diode displays have excellent switching times even in a passive matrix control, that is, in particular switching times far below one millisecond, whereby such passive matrix displays are already suitable for video as such.
  • very fast image sequences can be displayed, for example, rapidly changing measured values or animated graphics.
  • this is only possible using additional technologies, in particular using transistor circuits for driving (active matrix circuits).
  • organic Light-emitting diode displays in the form of matrix displays make it very flexible and allow a flexible display of the display content and thus a much better user guidance of the diabetic than by means of a segment display. This has a positive effect not only on measuring blood glucose concentration but also on other settings such as setup settings, data management functions, warnings, hints, (short) manuals, etc.
  • the portable medical system exploits the fact that OLED displays are current driven (that is, the brightness is typically proportional to the current conducted through the OLED), whereas typical liquid crystal displays are voltage controlled. Accordingly, the proposed portable medical system is equipped with a monitoring device.
  • This monitoring device should comprise a device for detecting at least one drive current through the at least one organic light-emitting diode display.
  • a device for comparing the at least one drive current can be provided with at least one predetermined setpoint.
  • a so-called "failsafe function” can be realized, for example, by monitoring current output stages of driver ICs for driving the OLEDs, as to whether a set current actually flows.
  • an error can be deduced in this way, for example.
  • it is sometimes even possible to deduce the nature of the error for example an error in a specific pixel and / or in a specific row and / or in a specific column.
  • the monitoring device may further include, for example, at least one warning device for generating a warning to a user, which outputs a warning to a user in deviation of the at least one drive current from the at least one predetermined setpoint by more than a predetermined amount.
  • warnings and corresponding instructions can be output on the at least one display element (that is to say, for example, on the organic light-emitting diode display itself or on a separate display, for example a warning symbol). In this way it can be prevented that patients with erroneous measured values or output values that are displayed on the at least one display element work and, for example calculate a medication accordingly.
  • the warning may be issued that the portable medical system must be serviced and / or no longer be used.
  • the above-described dangers of a false indication with the risk of a fatal faulty medication are thus almost impossible. This is a decisive advantage for applications in the medical sector where absolute reliability of the devices used is crucial.
  • the at least one organic light-emitting diode display can have at least one flexible display element.
  • This may in particular be a display element with a transparent flexible substrate, in particular a flexible glass and / or plastic substrate.
  • flexible is to be understood in contrast to rigid displays that at least a slight bending by manual force can be brought about.
  • the organic light-emitting diode display can be equipped with a flexible transparent plastic or glass substrate, for example glass substrates with a thickness of less than 200 ⁇ m, preferably less than 100 ⁇ m, being able to be used.
  • the flexibility of the at least one display element has a significant safety-relevant advantage. This is particularly due to the fact that flexible displays are able to cope with considerably higher mechanical shock loads than conventional rigid displays. Thus, in particular in the case of portable glucose meters or portable insulin pumps, the patient may drop the medical system (especially in the case of elderly patients), which in many cases leads to destruction of the display element. For flexible display elements, however, the risk of breakage is considerably reduced. Again, the use of OLEDs makes a positive impact, as OLEDs are much easier to produce flexible are liquid crystal displays in which a liquid is introduced between two transparent substrates.
  • an optimization device is used.
  • This optimization device should have at least one brightness sensor for detecting a brightness of an ambient light and also a device for automatic adaptation, in particular optimization, the brightness and / or the contrast and / or power consumption of the at least one display element, in particular the at least one organic light emitting diode display.
  • This development of the invention offers the possibility of automatically adjusting the display brightness of the at least one display element as a function of the ambient light in such a way that optimal brightness (in particular no glare in the dark), always high contrast and always minimal power consumption are provided under each ambient light condition.
  • the use of the optimization device offers particular advantages in particular in the field of diabetes medical technology. This is partly due to the fact that, as described above, as a result of diabetes diseases, visual disturbances can frequently occur in the affected patients. Therefore, it is particularly important here to optimize the corresponding display elements in terms of contrast and / or brightness.
  • a portable medical system is proposed, in particular for analysis and / or medication purposes, comprising at least one medical monitoring device and / or analysis device and / or medication device and also at least one display element.
  • the at least one display element comprises at least one organic light-emitting diode display.
  • an optimization device is provided which comprises at least one brightness sensor for detecting a brightness of an ambient light.
  • the optimization device comprises a device for automatic adaptation, in particular an optimization, of at least one of the following parameters of the at least one display element: a brightness, a contrast, a power consumption.
  • This proposed portable medical system may be additional and optional be designed mutatis mutandis advantageously by the developments described above.
  • OLED displays are particularly advantageous for insulin pumps or other medication pumps. This is mainly because such insulin pumps are often worn on the belt or under the clothing on the body, for example in the hip area. As a result, particularly large reading angles can occur in such systems, since the patient will only rarely remove the insulin pump from the body for a reading, and instead will attempt to read the display almost parallel to the display surface in the viewing direction.
  • an insulin pump for insulin medication which may be analogously also another type of medication pump and medication
  • the at least one display element comprises at least one organic light-emitting diode display.
  • the insulin pump need not necessarily have a monitoring device or an optimization device. Nevertheless, the advantageous embodiments described above can be realized analogously.
  • organic light emitting diode display as a display element in a portable medical system according to the above description is also proposed.
  • organic light-emitting diode displays according to one of the exemplary embodiments set out above as well as the advantageous developments of the portable medical system shown can be used individually or in combination.
  • the portable medical system 110 has a blood glucose meter 112, which can determine the blood glucose content in a blood drop 116 electrochemically by means of a test strip 114.
  • a blood glucose meter 112 instead of a blood glucose meter 112, an insulin pump may also be used.
  • the blood glucose meter 112 includes an input slot 118 into which the test strip 114 equipped with corresponding electrodes 120 can be inserted.
  • the test strip 114 may be equipped with test strips known in the art, such as those known in the art US 5,286,362 known test strips.
  • the electrodes 120 of the test strip 114 are contacted by an evaluation and measuring electronics 122 when the test strip 114 is inserted into the input slot 118, and an electrochemical determination of the analyte concentration in the blood drop 116 is carried out.
  • the evaluation and measurement electronics 122 is connected to a central processor unit 124, which controls the measurement by the evaluation and measurement electronics 122 and evaluates measurement results.
  • the central processing unit 124 may additionally have different memories, and it may be provided further data storage, not shown, in particular memory with a database function. In this way, the measurements carried out with the evaluation and measuring electronics 122 can not only be evaluated but also stored and displayed accordingly, so that they are always available for a patient.
  • a user can, for example, use the functions of the central processor unit 124 via operating elements 125 and thus carry out a measurement or even present older, stored measurement results.
  • Such functionalities of blood glucose meters 112 are known in the art.
  • the portable medical system 110 shown in FIG. 1 has a display element 126.
  • this display element 126 comprises an OLED passive matrix display 128, for example a monochrome or colored VGA display, ie a display with a resolution of 640 ⁇ 480 pixels, or other displays, for example smaller ones.
  • OLED passive matrix display 128 for example a monochrome or colored VGA display, ie a display with a resolution of 640 ⁇ 480 pixels, or other displays, for example smaller ones.
  • the display element 126 comprises a toolbar 130 with individual light symbols, for example a segmented battery level indicator, a warning symbol or a database symbol.
  • This toolbar may in turn comprise organic light-emitting diodes, for example, or other types of display elements or lighting may be provided, for example, lightings with inorganic light-emitting diodes.
  • the display element 126 is driven by a driver unit 132, which in turn can be composed of individual (not shown) subunits. For example, different drivers may be provided for the OLED passive matrix display 128 and for the toolbar 130 with their individual symbols. Via driver lines 134, 136, 138, the individual components 128, 130 of the display element 126 are supplied with corresponding driver signals, for example liquid crystal display elements with corresponding voltages or OLED display elements with corresponding currents. For the OLED passive matrix display 128, a column drive line 134 and a row drive line 136 are provided in this embodiment. Other designs are conceivable. In particular, instead of a passive matrix display, an active matrix display can also be used.
  • driver lines 134, 136, 138 in number and configuration and the driver unit 132 must be adapted to the actual circumstances.
  • a power supply which may be present for example in the form of batteries or accumulators and which supplies the central processing unit 124 and the driver unit 132 with energy accordingly.
  • the display element 126 has an optimization device 141 with a brightness sensor 140, which may comprise a photodiode, for example.
  • a brightness sensor 140 which may comprise a photodiode, for example.
  • This brightness sensor is advantageously integrated on a common surface of the display element 126, so that the distance to the OLED passive matrix display 128 is as small as possible. It is even possible to omit individual pixels in the OLED passive matrix display 128 and replace them with corresponding photosensors.
  • the brightness sensor 140 is in turn connected to the driver unit 132. Alternatively or additionally, a connection to the central processor unit 124 may also be present. Also, additional electronic components for evaluating the brightness sensor 140 may be provided.
  • a device 142 is provided for the automatic adaptation of the display element 126, which is also part of the optimization device 141.
  • This display element automatic adjustment device 142 evaluates the signals from the brightness sensor 140 and automatically optimizes the operation of the drive unit 132 such that the OLED passive matrix display 128 operates with optimum contrast and brightness adjusted to the brightness ratios while minimizing power consumption , Also, the brightness of the toolbar 130 (or individual icons) can be optimized accordingly. However, such optimization does not necessarily mean that under "good" ambient light conditions (ie, in a bright environment), the luminance of the OLED passive matrix display 128 is reduced and increased in "poor" ambient light conditions.
  • the driver unit 132 of the blood glucose meter 112 includes a monitor 144 for monitoring the operation of the indicator 126.
  • This monitor 144 is composed of a current detector 146 and a comparator 148.
  • the current detector 146 measures (continuous or in certain time intervals) the drive current or multiple drive currents flowing from the drive unit 132 to the OLED passive matrix display 128 and / or the toolbar 130. In this case, currents can be detected separately by the individual driver lines 134, 136, 138, and even currents can be detected separately by individual rows or columns of the OLED passive matrix display 128.
  • the comparison device 148 evaluates the results of the current detection device 146 and compares the measured currents with predetermined Setpoints.
  • these may be setpoints which are stored in a data memory, for example a data memory (not shown) of the central processor unit 124.
  • These setpoints can be variably adjusted during operation of the display element 126.
  • the setpoint values can be adapted to the optimum currents predetermined by the device 142 for automatic adaptation of the display element, so that the setpoint values are dependent on the respective ambient brightness.
  • Other embodiments are possible.
  • tolerance thresholds can also be specified.
  • an error is detected when falling below certain values, for example a deviation by more than a predetermined amount from the predetermined setpoint values or when exceeding or falling short of predetermined additional thresholds.
  • the monitoring device 144 may provide a corresponding error message to the central processor unit 124, possibly even an error message, which implies the exact nature of the error.
  • the central processing unit 124 may then cause a corresponding alert to be issued to a user of the blood glucose meter 112. This may be, for example, an audible warning or the activation of corresponding warning symbols or warnings, for example a warning symbol in the toolbar 130.
  • the corresponding errors can also be stored in the central processor unit 124 or in separate data memories, and then during maintenance of the blood glucose meter 112 to be read by a service technician for diagnostic purposes. Also, apart from the display element 126, separate display elements may be provided, for example a display element which only has the warning text that the blood glucose measuring device 112 must be serviced and may no longer be used.
EP05026289A 2005-12-02 2005-12-02 Système d'analyse muni d'un élément d'affichage de type OLED Withdrawn EP1792563A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP05026289A EP1792563A1 (fr) 2005-12-02 2005-12-02 Système d'analyse muni d'un élément d'affichage de type OLED
EP06830295A EP1954180B1 (fr) 2005-12-02 2006-12-01 Systeme d'analyse avec affichage organique par diodes electroluminescentes
AT06830295T ATE447884T1 (de) 2005-12-02 2006-12-01 Analysesystem mit organischer leuchtdiodenanzeige
PCT/EP2006/069229 WO2007063135A1 (fr) 2005-12-02 2006-12-01 Systeme d'analyse avec affichage organique par diodes electroluminescentes
CA002627677A CA2627677A1 (fr) 2005-12-02 2006-12-01 Systeme d'analyse a element d'affichage convivial
CN200680044273.XA CN101316548A (zh) 2005-12-02 2006-12-01 带有有机发光二极管显示装置的分析系统
DE502006005372T DE502006005372D1 (de) 2005-12-02 2006-12-01 Analysesystem mit organischer leuchtdiodenanzeige
JP2008542777A JP2009517153A (ja) 2005-12-02 2006-12-01 有機発光ダイオード表示装置を備えた分析システム
US12/129,050 US8439834B2 (en) 2005-12-02 2008-05-29 Analysis system with user-friendly display element

Applications Claiming Priority (1)

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EP05026289A EP1792563A1 (fr) 2005-12-02 2005-12-02 Système d'analyse muni d'un élément d'affichage de type OLED

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EP1792563A1 true EP1792563A1 (fr) 2007-06-06

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EP05026289A Withdrawn EP1792563A1 (fr) 2005-12-02 2005-12-02 Système d'analyse muni d'un élément d'affichage de type OLED
EP06830295A Not-in-force EP1954180B1 (fr) 2005-12-02 2006-12-01 Systeme d'analyse avec affichage organique par diodes electroluminescentes

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EP (2) EP1792563A1 (fr)
JP (1) JP2009517153A (fr)
CN (1) CN101316548A (fr)
AT (1) ATE447884T1 (fr)
CA (1) CA2627677A1 (fr)
DE (1) DE502006005372D1 (fr)
WO (1) WO2007063135A1 (fr)

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US8439834B2 (en) 2013-05-14
US20090012374A1 (en) 2009-01-08
DE502006005372D1 (de) 2009-12-24
CA2627677A1 (fr) 2007-06-07
JP2009517153A (ja) 2009-04-30
EP1954180A1 (fr) 2008-08-13
ATE447884T1 (de) 2009-11-15
CN101316548A (zh) 2008-12-03
EP1954180B1 (fr) 2009-11-11
WO2007063135A1 (fr) 2007-06-07

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